BlackHawk® herbicide delivers a strong burndown for battling tough weeds like glyphosate-resistant giant ragweed, fleabane, and common ragweed in soybeans, cereals and corn.


  • Active ingredients:  Group 14 (pyraflufen-ethyl) + Group 4 (2,4-D)
  • Application timing:  Burndown
  • Treatment area:  One case treats 40 acres, one tote treats 1,078 acres
  • Tank-mix order:  BlackHawk, glyphosate
  • Product rate:  1.1 L/ha (445 mL/ac.)
  • PCP#:  32111

Registered crops*

  • Barley
  • Oats
  • Rye
  • Field corn
  • Soybeans
  • Wheat (spring, winter)

*See label for individual use patterns

Weeds controlled

  • Burdock (prior to 4 leaf)
  • Canada fleabane (suppression, including glyphosate-resistant biotypes)
  • Cocklebur
  • Dandelion
  • Common ragweed (including glyphosate-resistant biotypes)
  • Daisy fleabane
  • Giant ragweed (including glyphosate-resistant biotypes)
  • Lamb’s quarters
  • Mallow
  • Mustards
  • Night-flowering catchfly
  • Pigweeds
  • Plantain
  • Prickly lettuce
  • Shepherd’s purse
  • Sow-thistle
  • Stinkweed
  • Volunteer canola
  • Wild buckwheat

Weed Control Challenge

Glyphosate alone used to provide an effective burndown option ahead of corn, cereals or soybeans. But the widespread adoption of herbicide-tolerant crops, and the alarming spread of glyphosate- and Group 2-resistant weeds including Canada fleabane, giant and common ragweed, and others, has dramatically reduced the effectiveness of glyphosate-only control programs.

Nufarm Solution

The all-in-one formulation of BlackHawk makes it easier for growers to spray when they need to – up to one day after planting soybeans. When tank mixed with glyphosates like Credit Xtreme, BlackHawk delivers faster, more complete weed control in a pre-emergent burndown treatment than glyphosate alone, Group 2 and Group 14 only herbicides. With two active ingredients and two modes of action, BlackHawk doubles as an effective tool for resistance management.


  • Three modes of action when tank mixed with glyphosate
  • Flexibility to apply up to 3 days post-planting in soybeans
  • Stronger resistance management with two active ingredients that control glyphosate, Group 2- and triazine-resistant biotypes
  • Faster control through systemic and contact activity for broad-spectrum weed control
  • Better performance than glyphosate or other tank-mix products


  • Convenient all-in-one formulation
  • Tank mixable with most pre-emergent herbicides
  • No surfactant required